CN109386852B - Induction cooker and pot cover state detection method and control method thereof - Google Patents
Induction cooker and pot cover state detection method and control method thereof Download PDFInfo
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- CN109386852B CN109386852B CN201810836077.0A CN201810836077A CN109386852B CN 109386852 B CN109386852 B CN 109386852B CN 201810836077 A CN201810836077 A CN 201810836077A CN 109386852 B CN109386852 B CN 109386852B
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- 230000006698 induction Effects 0.000 title claims abstract description 150
- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000010411 cooking Methods 0.000 claims abstract description 15
- 230000005291 magnetic effect Effects 0.000 claims description 35
- 230000008859 change Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/06—Lids or covers for cooking-vessels
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The invention provides an induction cooker and a pot cover state detection method and a control method thereof. The induction cooker of the present invention comprises: the device comprises a first detection unit and a second control unit electrically connected with the first detection unit; the pot cover is provided with a supporting part which is used for supporting the pot cover when the pot cover is vertically placed, the pot cover is provided with a ball switch and a power supply connected with the ball switch, and the ball switch is electrically connected with the first detection unit; the first detection unit has an input/output interface connected to the ball switch. The induction cooker provided by the invention is convenient to operate for detecting the state of the cooker cover, is not easy to misjudge, and can accurately control the cooking process.
Description
Technical Field
The invention relates to the field of household appliances, in particular to an induction cooker and a pot cover state detection method and a control method thereof.
Background
With the continuous progress of the living standard of people, an electromagnetic oven cooker becomes a widely used cooking appliance, the electromagnetic oven is an electric cooking appliance made by utilizing the electromagnetic induction heating principle, and comprises a high-frequency induction coil panel (namely an excitation coil), a control unit, a ferromagnetic material pot bottom cooker and the like.
The method for judging the position of the pot cover with accurate temperature control in the current market is to judge through the change of temperature measurement data of the pot cover when an induction cooker is heated, when the induction cooker is heated, a temperature measurement system of the pot cover measures that the temperature of water vapor and air in the pot is higher and higher under normal conditions, the pot cover is indicated to be on the pot body, and when the temperature detected by the pot cover becomes lower or unchanged within a period of time, the pot cover of the induction cooker is not placed on the pot body.
However, the above-mentioned manner of measuring temperature data is greatly influenced by the external temperature, and a user may add cold water or ice midway during the cooking process, so that the temperature in the pot becomes low, which causes erroneous judgment that the pot cover is not on the pot body, and when the temperature in the pot is low, the detection of temperature change of the pot cover is difficult, which is easy to perform erroneous judgment, thereby causing a problem that the cooking process cannot be accurately controlled.
Disclosure of Invention
In order to solve at least one problem related to misjudgment that a pot cover is not on a pot body in the cooking process of an induction cooker in the background art, the invention provides an induction cooker and a pot cover state detection method and a control method thereof.
In a first aspect, the present invention provides an induction cooker comprising: electromagnetism stove and pan, be equipped with first control unit in the electromagnetism stove, the pan includes the pot body and pot cover, and electromagnetism stove cooking utensil still includes: the device comprises a first detection unit and a second control unit electrically connected with the first detection unit;
the pot cover is provided with a supporting part which is used for supporting the pot cover when the pot cover is vertically placed, the pot cover is provided with a ball switch and a power supply connected with the ball switch, and the ball switch is electrically connected with the first detection unit;
the first detection unit is provided with an input/output interface connected with the ball switch and is used for detecting an input value of the input/output interface;
the second control unit is used for judging that the pot cover is vertically placed when the input value of the input/output interface is smaller than or equal to a first preset threshold value; the second control unit is also used for judging that the pot cover is horizontally placed when the input value of the input/output interface is greater than a first preset threshold value;
or the second control unit is used for judging that the pot cover is horizontally placed when the input value of the input/output interface is smaller than or equal to a first preset threshold value; the second control unit is further used for judging that the pot cover is vertically placed when the input value of the input/output interface is larger than the first preset threshold value.
The support part, the ball switch, the first detection unit, the input/output interface and the second control unit are arranged. The first detection unit is used for detecting the input value of the input/output interface, and the second control unit judges that the pot cover is horizontally placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the pot cover is judged to be vertically placed. Or the second control unit judges that the pot cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the second control unit judges that the pot cover is horizontally placed. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
As an optional mode, the induction cooker provided by the invention further comprises a second detection unit, wherein the second detection unit is used for detecting the magnetic field intensity between the cooker cover and the induction cooker;
the second control unit is used for judging that the pot cover is not positioned on the heated pot body when the magnetic field intensity between the pot cover and the induction cooker is smaller than a second preset threshold value;
the second control unit is also used for judging that the pot cover is on the heated pot body when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value.
As an alternative mode, the invention provides the electromagnetic oven cooker, wherein the ball switch comprises a switch body and a ball, the ball is located in the switch body, and the ball rolls along the length direction of the switch body, so that the ball switch is in a conducting state or an open-circuit state.
As an optional mode, in the cooker for an induction cooker according to the present invention, an input value of the input/output interface when the ball switch is in the on state is greater than an input value of the input/output interface when the ball switch is in the off state.
As an optional mode, the electromagnetic oven cooker provided by the invention further comprises a filter circuit, wherein the filter circuit is used for filtering the input value of the input/output interface.
In a second aspect, the invention provides a method for detecting the state of a cover in an induction cooker, which is applied to the induction cooker,
the method for detecting the state of the cooker cover in the induction cooker comprises the following steps: the first detection unit detects an input value of the input/output interface, and the size of the input value changes along with the position change of the ball switch;
when the input value of the input/output interface is smaller than or equal to a first preset threshold value, judging that the pot cover is vertically placed; when the input value of the input/output interface is larger than a first preset threshold value, judging that the pot cover is horizontally placed; or when the input value of the input/output interface is smaller than or equal to a first preset threshold value, judging that the pot cover is horizontally placed; and when the input value of the input/output interface is greater than a first preset threshold value, judging that the pot cover is vertically placed.
The second control unit judges that the pot cover is horizontally placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the pot cover is judged to be vertically placed. Or the second control unit judges that the pot cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the second control unit judges that the pot cover is horizontally placed. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
As an optional mode, the pot cover state detection method in the induction cooker provided by the invention has the advantages that after the pot cover is judged to be horizontally placed,
further comprising: the second detection unit detects the magnetic field intensity between the pot cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value, judging that the pot cover is on the heated pot body;
and when the magnetic field intensity between the pot cover and the induction cooker is smaller than a second preset threshold value, judging that the pot cover is not on the heated pot body.
As an optional mode, the method for detecting the state of the lid in the cooker of the induction cooker provided by the invention further comprises the following steps:
the input value is a level value.
As an optional mode, the method for detecting the state of the lid in the cooker of the induction cooker provided by the invention further comprises the following steps:
the input value of the input/output interface when the ball switch is in the conducting state is larger than that when the ball switch is in the breaking state.
In a third aspect, the present invention provides a control method for an induction cooker, which is applied to the above-mentioned induction cooker, and the control method includes: the first detection unit detects the input value of the input/output interface, and the input value of the input/output interface changes along with the position change of the ball switch;
when the input value of the input/output interface is smaller than or equal to a first preset threshold value, judging that the pot cover is vertically placed, and controlling the induction cooker to adopt a conventional mode by the first control unit;
when the input value of the input/output interface is greater than a first preset threshold value, judging that the cooker cover is horizontally placed, and controlling the induction cooker to adopt a fine control mode by the second control unit;
or when the input value of the input/output interface is smaller than or equal to a first preset threshold value, judging that the cooker cover is horizontally placed, and controlling the induction cooker to adopt a fine control mode by the second control unit;
when the input value of the input/output interface is larger than a first preset threshold value, the vertical placement of the cooker cover is judged, and the first control unit controls the induction cooker to adopt a conventional mode.
The second control unit judges that the cooker cover is horizontally placed through the fact that the input value of the input/output interface is larger than a first preset threshold value, and then the second control unit controls the induction cooker to adopt a fine control mode; when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the vertical placement of the cooker cover is judged, and then the first control unit controls the induction cooker to adopt a conventional mode. The second control unit judges that the cooker cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value, and then the first control unit controls the induction cooker to adopt a conventional mode; when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the horizontal placement of the pot cover is judged, and the second control unit controls the induction cooker to adopt a precise control mode. So that the induction cooker has different heating controls.
As an optional mode, the control method of the electromagnetic oven cooker provided by the invention has the advantages that after the pan cover is judged to be horizontally arranged,
further comprising: the second detection unit detects the magnetic field intensity between the pot cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value, judging that the pot cover is on the heated pot body, and controlling the induction cooker to adopt a fine control mode by a second control unit;
when the magnetic field intensity between the pot cover and the induction cooker is smaller than a second preset threshold value, the pot cover is judged not to be on the heated pot body, and then the first control unit controls the induction cooker to adopt a conventional mode.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an induction cooker according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a ball switch in an induction cooker according to an embodiment of the present invention;
FIG. 3 is a connection diagram of a first detecting unit, a second detecting unit, a ball switch, a power supply and a filter circuit in the cooker of the induction cooker according to the first embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for detecting a state of a lid in an induction cooker according to a second embodiment of the present invention;
fig. 5 is a schematic flow chart of another method for detecting a lid state in an induction cooker according to a second embodiment of the present invention;
fig. 6 is a schematic flow chart of a further method for detecting a state of a lid in an induction cooker according to a second embodiment of the present invention;
FIG. 7 is a flowchart illustrating a control method for an induction cooker according to a third embodiment of the present invention;
FIG. 8 is a flowchart illustrating a control method for a cooker of an induction cooker according to a third embodiment of the present invention;
fig. 9 is a flowchart illustrating a control method for an induction cooker according to a third embodiment of the present invention.
Description of reference numerals:
1-an induction cooker; 2-pot cover;
3-a pot body; 4-a vertical pot cover handle;
5-a first detection unit; 6-ball switch;
7-a power supply; 8-a second detection unit;
9-input/output interface; 10-a second guide pin;
11-a sleeve; 12-an end cap;
13-a rubber seat; 14-a switch body;
15-a ball bearing; 16-a filter circuit;
17-a first lead; 18-second control unit.
Detailed Description
Example one
Fig. 1 is a schematic structural diagram of an induction cooker according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a ball switch in an induction cooker according to an embodiment of the present invention; fig. 3 is a connection diagram of a first detecting unit, a second detecting unit, a ball switch, a power supply and a filter circuit in an induction cooker according to an embodiment of the present invention. As shown in fig. 1 to 3, the present embodiment provides an induction cooker including: the induction cooker comprises an induction cooker 1 and a cooker, wherein a first control unit is arranged in the induction cooker 1, the cooker comprises a cooker body 3 and a cooker cover 2,
the induction cooker further comprises: a first detection unit 5 and a second control unit 18 electrically connected to the first detection unit 5;
the pot cover 2 has a supporting portion for supporting the pot cover 2 when the pot cover 2 is vertically placed, and in a specific implementation manner, the supporting portion may be a pot cover handle 4 which can be vertically placed on the pot cover 2, but the embodiment is not limited thereto;
the pot cover 2 is provided with a ball switch 6 and a power supply 7 connected with the ball switch 6, the ball switch 6 is electrically connected with the first detection unit 5, and in the concrete implementation, the ball switch 6, the power supply 7 and the first detection unit 5 can be all arranged in the pot cover handle 4 which can be upright, or the ball switch 6, the power supply 7 and the first detection unit 5 can be all arranged on the upper surface of the pot cover 2, which is not limited in the embodiment;
the first detection unit 5 is provided with an input/output interface 9 connected with the ball switch 6, and the first detection unit 5 is used for detecting the input value of the input/output interface 9;
the second control unit 18 is used for judging that the pot cover 2 is vertically placed when the input value of the input/output interface 9 is less than or equal to a first preset threshold value;
the second control unit 18 is further configured to determine that the pot cover 2 is horizontally placed when the input value of the input/output interface 9 is greater than a first preset threshold;
or the second control unit 18 is used for judging that the pot cover 2 is horizontally placed when the input value of the input/output interface 9 is less than or equal to a first preset threshold value;
the second control unit 18 is further configured to determine that the pot cover 2 is vertically placed when the input value of the input/output interface 9 is greater than a first preset threshold. The operating principle of the electromagnetic oven 1 is that a coil panel in the electromagnetic oven is controlled by a first control unit in the electromagnetic oven 1 to generate an alternating magnetic field, when a pot body 3 containing iron is placed on a panel of the electromagnetic oven 1, the pot body 3 cuts magnetic lines of force of the alternating magnetic field to generate alternating current, namely eddy current, the eddy current can enable iron molecules of the pot body 3 to move irregularly at high speed and collide with each other to generate heat energy, so that the pot body 3 can generate heat rapidly to heat and cook food.
In the cooker of the electromagnetic oven provided by the embodiment, the cooker lid 2 has a supporting portion, the cooker lid 2 is provided with a ball switch 6 and a power supply 7 connected with the ball switch 6, and both the first detecting unit 5 and the second controlling unit 18 can be located on the cooker lid 2. The first detecting unit 5 can be located on the pot cover 2, the first detecting unit 5 can also be located on the supporting part, and the first detecting unit 5 is provided with an input/output interface 9 connected with the ball switch 6. Specifically, the power source 7 may be a battery, the positive electrode and the negative electrode of the battery are connected to the input/output interface 9, and the ball switch 6 is located between the positive electrode of the battery and the input/output interface 9.
Specifically, the input value of the input/output interface 9 when the ball switch 6 is in the on state is larger than the input value of the input/output interface 9 when the ball switch 6 is in the off state.
It should be noted that, when the ball switch 6 is installed, if the installed ball switch 6 is installed, when the lid is placed horizontally, the ball switch 6 is in a conducting state, and when the lid is placed vertically, the ball switch 6 is in a breaking state, because the input value of the input/output interface 9 when the ball switch 6 is in the conducting state is greater than the input value of the input/output interface 9 when the ball switch 6 is in the breaking state, that is, when the lid is placed horizontally, the input value of the input/output interface 9 detected by the first detecting unit 5 is greater than a first preset threshold, and the input value of the input/output interface 9 by the second controlling unit 18 is greater than the first preset threshold. When the pot cover 2 is vertically placed, the input value of the input/output interface 9 detected by the first detection unit 5 is smaller than or equal to a first preset threshold, and the input value of the second control unit 18 through the input/output interface 9 is smaller than or equal to the first preset threshold.
If the ball switch 6 installed in the reverse direction, that is, when the pot cover 2 is placed horizontally, the ball switch 6 is in the open circuit state, when the pot cover 2 is placed vertically, the ball switch 6 is in the on state, because the input value of the input/output interface 9 when the ball switch 6 is in the on state is greater than the input value of the input/output interface 9 when the ball switch 6 is in the open circuit state, that is, when the pot cover 2 is placed vertically, the input value of the input/output interface 9 detected by the first detecting unit 5 is greater than the first preset threshold, and the input value of the second controlling unit 18 through the input/output interface 9 is greater than the first preset threshold. When the pot cover 2 is horizontally placed, the input value of the input/output interface 9 detected by the first detection unit 5 is less than or equal to the first preset threshold, and the input value of the second control unit 18 through the input/output interface 9 is less than or equal to the first preset threshold. It should be noted that the input value of the input/output interface 9 may be a level value, and when the input value of the input/output interface 9 is greater than the first preset threshold, it indicates that the level of the input/output interface 9 is a high level, and when the input value of the input/output interface 9 is less than or equal to the first preset threshold, it indicates that the level of the input/output interface 9 is a low level. High and low are just one relative concept. Therefore, the first preset threshold may be set according to the power supply 7.
The electromagnetic oven cooker provided by the embodiment is provided with a support part, a ball switch, a first detection unit, an input/output interface and a second control unit. The first detection unit is used for detecting the input value of the input/output interface, and the second control unit judges that the pot cover is horizontally placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the pot cover is judged to be vertically placed. Or the second control unit judges that the pot cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the second control unit judges that the pot cover is horizontally placed. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
As an alternative embodiment of this embodiment, the present embodiment provides an induction cooker,
the induction cooker further comprises a second detection unit 8, wherein the second detection unit 8 is used for detecting the magnetic field intensity between the cooker cover 2 and the induction cooker 1;
the second control unit 18 is used for judging that the pot cover 2 is not on the heated pot body 3 when the magnetic field between the pot cover 2 and the induction cooker 1 is smaller than a second preset threshold value;
the second control unit 18 is further configured to determine that the pot cover 2 is on the heated pot body 3 when the magnetic field strength between the pot cover 2 and the induction cooker 1 is greater than or equal to a second preset threshold.
The second detecting unit 8 can be positioned in the induction cooker 1, and also can be positioned in the vertical pot cover handle 4 or the pot cover 2.
Optionally, the second detection unit 8 and the first detection unit 5 are both located in the second control unit 18.
Specifically, when the pot cover 2 is horizontally placed, there are two cases, the first case, in which the pot cover 2 is horizontally placed on the pot body 3. In the second case, the lid 2 is not placed on the body 3, although it is placed horizontally, for example the lid 2 is placed horizontally on a table or a kitchen worktop. Therefore, after it is determined that the pot lid 2 is horizontally placed, it is also necessary to determine whether the pot lid 2 is horizontally placed on the heating pot body 3.
It should be noted that when the pan body 3 is not heated, i.e. the induction cooker 1 is not in use, it is not necessary to control the induction cooker. Therefore, when the horizontal placement of the pot cover 2 is determined, the pot cover 2 needs to be determined to be horizontally placed on the heated pot body 3.
The cooker cover 2 is horizontally arranged on the cooker body 3 and the cooker cover 2 is horizontally arranged but not on the cooker body 3, and the magnetic field intensity between the cooker cover 2 and the induction cooker 1 is different. Therefore, whether the pot cover 2 is on the heated pot body 3 is judged through the second preset threshold.
As an alternative embodiment of this embodiment, the present embodiment provides an induction cooker,
the ball switch 6 comprises a switch body 14 and a ball 15, wherein the ball 15 is positioned in the switch body 14, and the ball 15 rolls along the length direction of the switch body 14, so that the ball switch 6 is in a conducting state or an open-circuit state.
The ball switch is also called a steel ball switch, the ball switch is a vibration switch and is just called differently, and the ball switch controls the on or off of a circuit by the principle that a ball 15 is in rolling contact with a guide pin.
Specifically, the switch body 14 may include a sleeve 11, an end cap 12, a rubber seat 13, and a conductive pin, the balls 15, the sleeve 11, and the end cap 12 are made of a conductive material, the balls 15 are located in the sleeve 11, the number of the balls 15 is multiple, the sum of diameters of all the balls 15 is smaller than the length of the sleeve 11, and optionally, the difference between the length of the sleeve 11 and the sum of diameters of all the balls 15 is a diameter value of one ball 15;
the end cover 12 and the rubber seat 13 are respectively sleeved at two ends of the sleeve 11, the ball 15 is enclosed in the sleeve 11 through the end cover 12 and the rubber seat 13, the number of the conductive pins is at least two, for convenience of description, the conductive pins can be respectively called as a first guide pin 17, a second guide pin 10, a third guide pin and the like, specifically, the first guide pin 17 penetrates through the end cover 12, when the ball 15 contacts with the end cover 12, one end of the first guide pin 17 contacts with the ball 15, the other end of the first guide pin 17 extends out of the end cover 12 and is connected with the input and output interface 9, the second guide pin 10 penetrates through the rubber seat 13, when the ball 15 contacts with the rubber seat 13, one end of the second guide pin 10 contacts with the ball 15, and the other end of the second guide pin 10 extends out of the rubber seat 13 and is connected with the power supply 7.
The ball switch 6 is located in the lid handle 4 which can be erected, for example, as follows. During the use, but be located vertical pot cover handle 4 with ball switch 6, when pot cover 2 level was placed, the axis of sleeve 11 was 30-60 with the contained angle of horizontal direction to keep the height that the height of end cover 12 is higher than rubber seat 13, and the height that the height of end cover 12 is greater than rubber seat 13 promptly, ball 15 rolls to the link of sleeve 11 with rubber seat 13 under the effect of gravity, ball 15 contacts with the second guide pin 10 on the rubber seat 13, has the distance (this distance can be the distance of a ball 15 diameter) between ball 15 and the first guide pin 17 on the end cover 12. The ball 15, the end cover 12, the sleeve 11, the second guide pin 10 and the first guide pin 17 which are all conductive at this time are communicated, so that the ball switch 6 is in a conducting state;
when the pot cover 2 is vertically placed, the height of the end cover 12 is lower than that of the rubber seat 13, that is, the height of the rubber seat 13 is greater than that of the end cover 12, the ball 15 rolls to the connecting end of the sleeve 11 and the end cover 12 under the action of gravity, at this time, the ball 15 contacts with the first guide pin 17 on the end cover 12, a distance (the distance may be a distance of one diameter of the ball 15) is formed between the ball 15 and the second guide pin 10 on the rubber seat 13, the ball 15, the end cover 12, the sleeve 11 and the first guide pin 17 which are all conductive at this time are communicated, but since the ball 15 and the second guide pin 10 are not communicated, the conductive passage is blocked by the rubber seat 13 between the second guide pin 10 and the sleeve 11, and therefore, the ball switch 6 is in an open circuit state.
Optionally, the axis of the sleeve 11 is angled at 45 ° to the horizontal.
The ball switch 6 is installed in a way that when the pot cover 2 is horizontally placed, the ball switch 6 is in a conducting state, and when the pot cover 2 is vertically placed, the ball switch 6 is in a breaking state. It is also possible to adopt a configuration in which the ball switch 6 is in an on state when the lid 2 is placed vertically, and the ball switch 6 is in an off state when the lid 2 is placed horizontally. That is, the ball switch 6 is reversely installed, and at this time, the structure and the operation principle of the ball switch 6 are the same, and are not described in detail herein.
For the safety of the circuit, the insulating layers are provided on the outside of the sleeve 11 and the outside of the portions of the first guide pin 17 and the second guide pin 10 extending out of the sleeve 11.
As an alternative embodiment of this embodiment, the present embodiment provides an induction cooker,
a filter circuit 16 is also included, and the filter circuit 16 is used for filtering the input value of the input/output interface 9.
Specifically, the filter circuit 16 is located between the input/output interface 9 and the ball switch 6, the filter circuit 16 includes a resistor and a capacitor, a first end of the resistor is connected between the input/output interface 9 and the ball switch 6, a first end of the capacitor is also connected between the input/output interface 9 and the ball switch 6, a second end of the capacitor is connected with a second end of the resistor, that is, the resistor and the capacitor are connected in parallel, the second end of the resistor is grounded, and if the power supply 7 is a battery, the second end of the resistor is connected to a negative electrode of the battery.
As an alternative embodiment, the electromagnetic oven cooker provided in this embodiment further includes an alarm device, the alarm device is connected to the second control unit 18, and when the lid 2 is not on the heated pot body 3, the second control unit 18 sends an alarm (sound or alarm light) to remind the user, so that the user can cover the lid 2 on the heated pot body 3.
As an alternative embodiment, the present embodiment provides the electromagnetic oven cooker, wherein the controller on the electromagnetic oven 1 and the second control unit 18 are connected wirelessly.
Specifically, the cooker lid 2 is provided with a first wireless transceiver connected with the second control unit 18, and the induction cooker 1 is provided with a second wireless transceiver connected with the first control unit. After the pot cover 2 is judged to be on the heated pot body 3, the second control unit 18 sends a control signal to the first control unit through the first wireless transceiver, and the second wireless transceiver is used for receiving the control signal, so that the first control unit determines the heating power of the induction cooker 1 according to the control signal.
The electromagnetic oven cooker provided by the above embodiment is provided with the ball switch, the first detection unit, the input/output interface and the second control unit. The second control unit judges that the pot cover is horizontally placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the pot cover is judged to be vertically placed. Or the second control unit judges that the pot cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the second control unit judges that the pot cover is horizontally placed. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
Example two
Fig. 4 is a schematic flow chart of a method for detecting a state of a lid in an induction cooker according to a second embodiment of the present invention. Fig. 5 is a schematic flow chart of another method for detecting a lid state in an induction cooker according to a second embodiment of the present invention. The method for detecting the state of the pot cover in the induction cooker is applied to a scene of cooking food by using the induction cooker.
Specifically, electromagnetism stove 1 and pan are equipped with first control unit in the electromagnetism stove 1, and the pan includes the pot body 3 and pot cover 2, and the electromagnetism stove cooking utensil still includes: a first detection unit 5 and a second control unit 18 electrically connected to the first detection unit 5; the pot cover 2 has a supporting portion for supporting the pot cover 2 when the pot cover 2 is vertically placed, and in a specific implementation manner, the supporting portion may be a pot cover handle 4 which can be vertically placed on the pot cover 2, but the embodiment is not limited thereto;
the cooker cover 2 is provided with a ball switch 6 and a power supply 7 connected with the ball switch 6, and the ball switch 6 is electrically connected with the first detection unit 5; the first detection unit 5 is provided with an input/output interface 9 connected with the ball switch 6, and the first detection unit 5 is used for detecting the input value of the input/output interface 9;
the control unit second control unit 18 is used for judging that the pot cover 2 is vertically placed when the input value of the input/output interface 9 is less than or equal to a first preset threshold value;
the second control unit 18 is further configured to determine that the pot cover 2 is horizontally placed when the input value of the input/output interface 9 is greater than a first preset threshold.
Or the control unit second control unit 18 is used for judging that the pot cover 2 is horizontally placed when the input value of the input/output interface 9 is less than or equal to a first preset threshold value;
the second control unit 18 is further configured to determine that the pot cover 2 is vertically placed when the input value of the input/output interface 9 is greater than a first preset threshold.
It should be noted that, in the method for detecting a state of a lid in an induction cooker according to this embodiment, the installation manner, structure and operation principle of the ball switch 6, and the installation manner, structure and operation principle of the ball switch 6 in the first embodiment are not described herein again.
Specifically, as shown in fig. 4, the method for detecting the state of the lid in the cooker of the induction cooker provided by the embodiment includes:
s101, detecting an input value of the input/output interface 9, wherein the input value of the input/output interface 9 changes along with the position change of the ball switch 6; if the input value of the input/output interface 9 is smaller than or equal to the first preset threshold, step 102 is executed, and if the input value of the input/output interface 9 is greater than the first preset threshold, step 103 is executed.
S102, when the input value of the input/output interface 9 is smaller than or equal to a first preset threshold value, the pot cover 2 is judged to be vertically placed.
S103, when the input value of the input/output interface 9 is larger than a first preset threshold value, the pot cover 2 is judged to be horizontally placed.
As shown in fig. 5, the method for detecting the state of the lid in the cooker of the induction cooker provided by the embodiment comprises the following steps:
s201, detecting an input value of the input/output interface 9, wherein the input value of the input/output interface 9 changes along with the position change of the ball switch 6; if the input value of the input/output interface 9 is smaller than or equal to the first preset threshold, step 202 is executed, and if the input value of the input/output interface 9 is greater than the first preset threshold, step 203 is executed.
S202, when the input value of the input/output interface 9 is smaller than or equal to a first preset threshold value, the pot cover 2 is judged to be horizontally placed.
S203, when the input value of the input/output interface 9 is larger than a first preset threshold value, the pot cover 2 is judged to be vertically placed.
In the method for detecting the state of the pot cover in the induction cooker, the second control unit judges that the pot cover is horizontally placed through the fact that the input value of the input/output interface is larger than the first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the pot cover is judged to be vertically placed. Or the second control unit judges that the pot cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value; and when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the second control unit judges that the pot cover is horizontally placed. By using the induction cooker provided by the embodiment, the operation of detecting the state of the pot cover is convenient, the misjudgment is not easy to occur, and the cooking process can be accurately controlled.
When the pot cover 2 is horizontally placed, there are two situations, the first situation, the pot cover 2 is horizontally placed on the pot body 3. In the second case, the lid 2 is not placed on the body 3, although it is placed horizontally, for example the lid 2 is placed horizontally on a table or a kitchen worktop. Therefore, after the pot cover 2 is determined to be horizontally placed, it is also required to determine that the pot cover 2 is horizontally placed on the heating pot body 3. Fig. 6 is a schematic flow chart of another method for detecting a state of a lid in an induction cooker according to a second embodiment of the present invention. As shown in fig. 6, the method for detecting the state of the lid in the cooker of the induction cooker according to the present embodiment further includes, after determining that the lid 2 is horizontally placed in the second embodiment:
s301, detecting the magnetic field intensity between the pot cover 2 and the induction cooker 1 by the second detection unit 8; if the magnetic field strength between the cooker lid 2 and the electromagnetic oven 1 is greater than or equal to the second preset threshold, step 302 is executed, and if the magnetic field strength between the cooker lid 2 and the electromagnetic oven 1 is less than the second preset threshold, step 303 is executed.
S302, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is larger than or equal to a second preset threshold value, the pot cover 2 is judged to be on the heated pot body 3. S303, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is smaller than a second preset threshold value, judging that the pot cover 2 is not on the heated pot body 3.
It should be noted that when the pan body 3 is not heated, i.e. the induction cooker 1 is not in use, it is not necessary to control the induction cooker. Therefore, when the horizontal placement of the pot cover 2 is determined, the pot cover 2 needs to be determined to be horizontally placed on the heated pot body 3.
Specifically, the input value is a level value.
Specifically, the input value of the input/output interface 9 when the ball switch 6 is in the on state is larger than the input value of the input/output interface 9 when the ball switch 6 is in the off state.
After judging that the pot cover 2 is not on the heated pot body 3, the second control unit 18 sends out an alarm signal. An alarm (sound or alarm lamp) is given by the second control unit 18 to alert the user so that the user covers the lid 2 on the heated pot body 3.
Therefore, the method for detecting the state of the lid in the cooker of the induction cooker according to the present embodiment further includes, before the first detecting unit 5 detects the level through the input/output interface 9: the input values of the input-output interface 9 are filtered.
Specifically, the filter circuit 16 may be used to filter the input value of the input/output interface 9.
EXAMPLE III
FIG. 7 is a flowchart illustrating a control method for an induction cooker according to a third embodiment of the present invention; FIG. 8 is a flowchart illustrating a control method for a cooker of an induction cooker according to a third embodiment of the present invention; fig. 9 is a flowchart illustrating a control method for an induction cooker according to a third embodiment of the present invention. Specifically, as shown in fig. 7, the method for controlling the cooker of the induction cooker according to the present embodiment includes:
s401, detecting a detected input value of the input/output interface 9, wherein the size of the input value of the input/output interface 9 changes along with the position change of the ball switch 6; if the input value of the input/output interface 9 is smaller than or equal to the first preset threshold, step 402 is executed, and if the input value of the input/output interface 9 is greater than the first preset threshold, step 403 is executed.
S402, when the input value of the input/output interface 9 is smaller than or equal to a first preset threshold value, the pot cover 2 is judged to be vertically placed, and the first control unit controls the induction cooker 1 to adopt a conventional mode.
And S403, when the input value of the input/output interface 9 is greater than a first preset threshold value, judging that the pot cover 2 is horizontally placed, and controlling the induction cooker 1 to adopt a precise control mode by the second control unit 18.
As shown in fig. 8, the control method of the induction cooker according to the present embodiment includes:
s501, detecting a detected input value of the input/output interface 9, wherein the size of the input value of the input/output interface 9 changes along with the position change of the ball switch 6; if the input value of the input/output interface 9 is smaller than or equal to the first preset threshold, step 502 is executed, and if the input value of the input/output interface 9 is greater than the first preset threshold, step 503 is executed.
S502, when the input value of the input/output interface 9 is larger than a first preset threshold value, the pot cover 2 is judged to be vertically placed, and the first control unit controls the induction cooker 1 to adopt a conventional mode.
S503, when the input value of the input/output interface 9 is smaller than or equal to the first preset threshold, the pot cover 2 is judged to be horizontally placed, and the second control unit 18 controls the induction cooker 1 to adopt a fine control mode.
It should be noted that, in the control method of the cooker of the induction cooker provided in this embodiment, the installation manner, structure and operation principle of the ball switch 6 and the installation manner, structure and operation principle of the ball switch 6 in the first embodiment are not described in detail herein.
Specifically, as the cooker cover 2 is not arranged on the cooker body 3, the electromagnetic oven 1 adopts a conventional mode, and the conventional mode is that the temperature of the electromagnetic oven 1 is judged to be measured by an NTC (negative temperature coefficient) at the lower part of a porcelain plate of the electromagnetic oven 1, and no anti-overflow judgment is carried out. Because the pot cover 2 is arranged on the pot body 3, the induction cooker 1 adopts a precise control mode, the temperature judgment and/or the anti-overflow judgment of the induction cooker 1 are both completed through the second control unit 18 of the pot cover 2, the data are transmitted to the first control unit of the induction cooker 1 through wireless communication, and the heating temperature of the induction cooker 1 is controlled through the first control unit.
As shown in fig. 9, the method for controlling an induction cooker according to this embodiment further includes, after determining that the lid 2 is horizontally placed according to the third embodiment:
s601, detecting the magnetic field intensity between the pot cover 2 and the induction cooker 1 by the second detection unit 8; if the magnetic field strength between the pot cover 2 and the electromagnetic oven 1 is smaller than the second preset threshold, step 602 is executed, and if the magnetic field strength between the pot cover 2 and the electromagnetic oven 1 is greater than or equal to the second preset threshold, step 603 is executed.
S602, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is smaller than a second preset threshold value, judging that the pot cover 2 is not on the heated pot body 3, and controlling the induction cooker 1 to adopt a conventional mode by the first control unit.
S603, when the magnetic field intensity between the pot cover 2 and the induction cooker 1 is larger than or equal to a second preset threshold value, the pot cover 2 is judged to be on the heated pot body 3, and then the second control unit 18 controls the induction cooker 1 to adopt a precise control mode.
In the detection method of the induction cooker provided by the embodiment, the second control unit judges that the cooker cover is horizontally placed by judging that the input value of the input/output interface is greater than the first preset threshold value, and then the second control unit controls the induction cooker to adopt a precise control mode; when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the vertical placement of the cooker cover is judged, and then the first control unit controls the induction cooker to adopt a conventional mode. The second control unit judges that the pot cover is vertically placed through the fact that the input value of the input/output interface is larger than a first preset threshold value, and controls the induction cooker to adopt a fine control mode; when the input value of the second control unit through the input/output interface is smaller than or equal to a first preset threshold value, the second control unit judges that the cooker cover is horizontally placed, and then the first control unit controls the induction cooker to adopt a conventional mode. So that the induction cooker has different heating controls.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. An induction cooker comprising: electromagnetism stove and pan, be equipped with first control unit in the electromagnetism stove, the pan includes the pot body and pot cover, its characterized in that, electromagnetism stove cooking utensil still includes: the device comprises a first detection unit and a second control unit electrically connected with the first detection unit;
the pot cover is provided with a supporting part which is used for supporting the pot cover when the pot cover is vertically placed, the pot cover is provided with a ball switch and a power supply connected with the ball switch, and the ball switch is electrically connected with the first detection unit;
the first detection unit is provided with an input/output interface connected with the ball switch, and is used for detecting an input value of the input/output interface;
the second control unit is used for judging that the pot cover is vertically placed when the input value of the input/output interface is smaller than or equal to a first preset threshold value; the second control unit is further used for judging that the pot cover is horizontally placed when the input value of the input/output interface is larger than the first preset threshold value;
or the second control unit is used for judging that the pot cover is horizontally placed when the input value of the input/output interface is smaller than or equal to a first preset threshold value; the second control unit is further used for judging that the pot cover is vertically placed when the input value of the input/output interface is larger than the first preset threshold value.
2. The induction cooker according to claim 1, further comprising a second detecting unit for detecting a magnetic field intensity between the lid and the induction cooker;
the second control unit is used for judging that the pot cover is not positioned on the heated pot body when the magnetic field intensity between the pot cover and the induction cooker is smaller than a second preset threshold value;
the second control unit is also used for judging that the pot cover is on the pot body for heating when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value.
3. The induction cooker of claim 1, wherein the ball switch comprises a switch body and a ball, the ball being located in the switch body, the ball rolling along a length direction of the switch body to place the ball switch in an on state or an off state.
4. The induction cooker according to claim 3, wherein the input value of the input-output interface when the ball switch is in an on state is larger than the input value of the input-output interface when the ball switch is in an off state.
5. The induction cooker of claim 2, further comprising a filter circuit for filtering the input value of the input-output interface.
6. A pot cover state detection method in an induction cooker, applied to the induction cooker of claim 5,
the method for detecting the state of the cooker cover in the induction cooker comprises the following steps: the first detection unit detects an input value of the input/output interface, and the magnitude of the input value changes along with the position change of the ball switch;
when the input value of the input/output interface is smaller than or equal to the first preset threshold value, judging that the pot cover is vertically placed;
when the input value of the input/output interface is greater than the first preset threshold value, judging that the pot cover is horizontally placed;
or when the input value of the input/output interface is smaller than or equal to a first preset threshold value, judging that the pot cover is horizontally placed; and when the input value of the input/output interface is greater than the first preset threshold value, judging that the pot cover is vertically placed.
7. The pot cover state detecting method in an induction cooker according to claim 6, wherein after said judgment that said pot cover is placed horizontally,
further comprising: the second detection unit detects the magnetic field intensity between the pot cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value, judging that the pot cover is on the heated pot body;
and when the magnetic field intensity between the pot cover and the induction cooker is smaller than the second preset threshold value, judging that the pot cover is not on the pot body for heating.
8. The method for detecting a state of a lid in an induction cooker according to claim 7 or 6, further comprising:
the input value is a level value.
9. The method of detecting a state of a lid in an induction cooker according to claim 6, further comprising:
the input value of the input/output interface when the ball switch is in the conducting state is larger than the input value of the input/output interface when the ball switch is in the breaking state.
10. A control method of an induction cooker applied to the induction cooker of claim 5, characterized by comprising: the first detection unit detects the input value of the input/output interface, and the magnitude of the input value of the input/output interface changes along with the position change of the ball switch;
when the input value of the input/output interface is smaller than or equal to the first preset threshold value, judging that the pot cover is vertically placed, and controlling the induction cooker to adopt a conventional mode by a first control unit;
when the input value of the input/output interface is greater than the first preset threshold value, judging that the pot cover is horizontally placed, and controlling the induction cooker to adopt a fine control mode by the second control unit;
or when the input value of the input/output interface is smaller than or equal to the first preset threshold value, judging that the pot cover is horizontally placed, and controlling the induction cooker to adopt a fine control mode by the second control unit;
when the input value of the input/output interface is larger than the first preset threshold value, the pot cover is judged to be vertically placed, and then the first control unit controls the induction cooker to adopt a conventional mode.
11. The control method of an induction cooker as claimed in claim 10, wherein after said judgment that said lid is placed horizontally,
further comprising: the second detection unit detects the magnetic field intensity between the pot cover and the induction cooker;
when the magnetic field intensity between the pot cover and the induction cooker is larger than or equal to a second preset threshold value, judging that the pot cover is on the heated pot body, and controlling the induction cooker to adopt a precise control mode by the second control unit;
when the magnetic field intensity between the pot cover and the induction cooker is smaller than the second preset threshold value, the pot cover is judged not to be heated on the pot body, and then the first control unit controls the induction cooker to adopt a conventional mode.
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| CN204232856U (en) * | 2014-11-25 | 2015-04-01 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus |
| CN205125902U (en) * | 2015-11-05 | 2016-04-06 | 佛山市顺德区美的电热电器制造有限公司 | Cooking utensil |
| CN207575024U (en) * | 2017-04-24 | 2018-07-06 | 浙江绍兴苏泊尔生活电器有限公司 | Overflow-proof cooking device |
| CN107289474B (en) * | 2017-07-10 | 2023-05-09 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of induction cooker and induction cooker |
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